mathsurgery - Processing and representing data; Interpreting and discussing results year 8

All
• Represent problems, making correct use of symbols, words, diagrams, tables and graphs
• Calculate statistics for small sets of discrete data:
(i) find the mode, median and range, and the modal class for grouped data
(ii) calculate the mean, including from a simple frequency table, using a calculator for a larger number of items
• Construct, on paper and using ICT, graphs and diagrams to represent data, including:
(i) bar-line graphs
(ii) frequency diagrams for grouped discrete data
(iii) simple pie charts
• Interpret diagrams and graphs (including pie charts), and draw simple conclusions based on the shape of graphs and simple statistics for a single distribution

Most
• Try out and compare mathematical representations
• Calculate statistics for sets of discrete and continuous data, including with a calculator and spreadsheet; recognise when it is appropriate to use the range, mean, median and mode and, for grouped data, the modal class• Construct graphical representations, on paper and using ICT, and identify which are most useful in the context of the problem. Include:
(i) pie charts for categorical data
(ii) bar charts and frequency diagrams for discrete and continuous data
(iii) simple line graphs for time series
(iv) simple scatter graphs
(v) stem-and-leaf diagrams
• Interpret tables, graphs and diagrams for discrete and continuous data, relating summary statistics and findings to the questions being explored

Some
• Represent problems and synthesise information in algebraic, geometrical or graphical form; move from one form to another to gain a different perspective on the problem
• Calculate statistics and select those most appropriate to the problem or which address the questions posed
• Select, construct and modify, on paper and using ICT, suitable graphical representations to progress an enquiry and identify key features present in the data. Include:
(i) line graphs for time series
(ii) scatter graphs to develop further understanding of correlation
• Interpret graphs and diagrams and make inferences to support or cast doubt on initial conjectures; have a basic understanding of correlation

Tag cloud:

Processing and representing data; Interpreting and discussing results year 8